feature: add a button to see which branches and tags that contains selected commit (#388)

src/Views/CommitBaseInfo.axaml

@@ -57,12 +57,16 @@
           <StackPanel Grid.Row="0" Grid.Column="1" Orientation="Horizontal">
             <SelectableTextBlock Classes="primary" 
                                  Text="{Binding SHA}" 
-                                 Margin="12,0,0,0" 
+                                 Margin="12,0,4,0" 
                                  VerticalAlignment="Center"/>
 
-            <Button Classes="icon_button" Cursor="Hand" Click="OnOpenWebLink" IsVisible="{Binding #ThisControl.WebLinks, Converter={x:Static c:ListConverters.IsNotNullOrEmpty}}">
+            <Button Classes="icon_button" Width="24" Cursor="Hand" Click="OnOpenWebLink" IsVisible="{Binding #ThisControl.WebLinks, Converter={x:Static c:ListConverters.IsNotNullOrEmpty}}">
               <Path Width="12" Height="12" Data="{StaticResource Icons.Link}" Fill="{DynamicResource Brush.Link}"/>
             </Button>
+
+            <Button Classes="icon_button" Width="24" Cursor="Hand" Click="OnOpenContainsIn" IsVisible="{Binding #ThisControl.SupportsContainsIn}" ToolTip.Tip="{DynamicResource Text.CommitDetail.Info.ContainsIn}">
+              <Path Width="12" Height="12" Data="{StaticResource Icons.Relation}"/>
+            </Button>
           </StackPanel>
 
 
@@ -98,7 +102,8 @@
                                    LabelForeground="{DynamicResource Brush.DecoratorFG}"
                                    FontFamily="{DynamicResource Fonts.Monospace}"
                                    FontSize="10"
-                                   VerticalAlignment="Center"/>
+                                   VerticalAlignment="Center"
+                                   Refs="{Binding Decorators}"/>
           </Border>
           
           <!-- Messages -->

src/Views/CommitBaseInfo.axaml.cs

@@ -1,3 +1,5 @@
+using System.Threading.Tasks;
+
 using Avalonia;
 using Avalonia.Collections;
 using Avalonia.Controls;
@@ -17,6 +19,15 @@ namespace SourceGit.Views
             set => SetValue(MessageProperty, value);
         }
 
+        public static readonly StyledProperty<bool> SupportsContainsInProperty =
+            AvaloniaProperty.Register<CommitBaseInfo, bool>(nameof(SupportsContainsIn));
+
+        public bool SupportsContainsIn
+        {
+            get => GetValue(SupportsContainsInProperty);
+            set => SetValue(SupportsContainsInProperty, value);
+        }
+
         public static readonly StyledProperty<AvaloniaList<Models.CommitLink>> WebLinksProperty =
             AvaloniaProperty.Register<CommitBaseInfo, AvaloniaList<Models.CommitLink>>(nameof(WebLinks));
 
@@ -74,6 +85,19 @@ namespace SourceGit.Views
             e.Handled = true;
         }
 
+        private void OnOpenContainsIn(object sender, RoutedEventArgs e)
+        {
+            if (DataContext is ViewModels.CommitDetail detail && sender is Button button)
+            {
+                var tracking = new CommitRelationTracking(detail);
+                var flyout = new Flyout();
+                flyout.Content = tracking;
+                flyout.ShowAt(button);
+            }
+
+            e.Handled = true;
+        }
+
         private void OnParentSHAPressed(object sender, PointerPressedEventArgs e)
         {
             if (DataContext is ViewModels.CommitDetail detail && sender is Control { DataContext: string sha })

src/Views/CommitDetail.axaml

@@ -21,6 +21,7 @@
           <!-- Base Information -->
           <v:CommitBaseInfo Content="{Binding Commit}" 
                             Message="{Binding FullMessage}"
+                            SupportsContainsIn="True"
                             WebLinks="{Binding WebLinks}"
                             IssueTrackerRules="{Binding IssueTrackerRules}"/>
 

src/Views/CommitRefsPresenter.cs

@@ -17,6 +17,15 @@ namespace SourceGit.Views
             public bool IsTag { get; set; } = false;
         }
 
+        public static readonly StyledProperty<List<Models.Decorator>> RefsProperty =
+            AvaloniaProperty.Register<CommitRefsPresenter, List<Models.Decorator>>(nameof(Refs));
+
+        public List<Models.Decorator> Refs
+        {
+            get => GetValue(RefsProperty);
+            set => SetValue(RefsProperty, value);
+        }
+
         public static readonly StyledProperty<FontFamily> FontFamilyProperty =
             TextBlock.FontFamilyProperty.AddOwner<CommitRefsPresenter>();
 
@@ -85,7 +94,8 @@ namespace SourceGit.Views
             AffectsMeasure<CommitRefsPresenter>(
                 FontFamilyProperty,
                 FontSizeProperty,
-                LabelForegroundProperty);
+                LabelForegroundProperty,
+                RefsProperty);
 
             AffectsRender<CommitRefsPresenter>(
                 IconBackgroundProperty,
@@ -121,17 +131,12 @@ namespace SourceGit.Views
             }
         }
 
-        protected override void OnDataContextChanged(EventArgs e)
-        {
-            base.OnDataContextChanged(e);
-            InvalidateMeasure();
-        }
-
         protected override Size MeasureOverride(Size availableSize)
         {
             _items.Clear();
 
-            if (DataContext is Models.Commit commit && commit.HasDecorators)
+            var refs = Refs;
+            if (refs != null && refs.Count > 0)
             {
                 var typeface = new Typeface(FontFamily);
                 var typefaceBold = new Typeface(FontFamily, FontStyle.Normal, FontWeight.Bold);
@@ -139,7 +144,7 @@ namespace SourceGit.Views
                 var labelSize = FontSize;
                 var requiredWidth = 0.0;
 
-                foreach (var decorator in commit.Decorators)
+                foreach (var decorator in refs)
                 {
                     var isHead = decorator.Type == Models.DecoratorType.CurrentBranchHead ||
                         decorator.Type == Models.DecoratorType.CurrentCommitHead;

src/Views/CommitRelationTracking.axaml

@@ -0,0 +1,36 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:m="using:SourceGit.Models"
+             xmlns:v="using:SourceGit.Views"
+             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+             x:Class="SourceGit.Views.CommitRelationTracking">
+  <Grid RowDefinitions="Auto,Auto,Auto">
+    <TextBlock Grid.Row="0" Classes="info_label" Text="COMMIT CONTAINS IN" HorizontalAlignment="Center"/>
+    <Rectangle Grid.Row="1" Height="1" HorizontalAlignment="Stretch" Margin="0,8" Fill="{DynamicResource Brush.Border2}"/>
+    <ScrollViewer Grid.Row="2" MinWidth="300" MaxWidth="500" MaxHeight="200" HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Auto">
+      <ItemsControl x:Name="Container">
+        <ItemsControl.ItemsPanel>
+          <ItemsPanelTemplate>
+            <WrapPanel Orientation="Horizontal"/>
+          </ItemsPanelTemplate>
+        </ItemsControl.ItemsPanel>
+
+        <ItemsControl.ItemTemplate>
+          <DataTemplate DataType="m:Decorator">
+            <Border Height="20" Margin="0,4,6,0" BorderThickness="1" BorderBrush="{DynamicResource Brush.Border2}" CornerRadius="12">
+              <StackPanel Orientation="Horizontal" Margin="8,0" VerticalAlignment="Center">
+                <Path Width="10" Height="10" Data="{StaticResource Icons.Branch}" IsVisible="{Binding !IsTag}"/>
+                <Path Width="10" Height="10" Data="{StaticResource Icons.Tag}" IsVisible="{Binding IsTag}"/>
+                <TextBlock Classes="primary" Text="{Binding Name}" Margin="2,0,0,0"/>
+              </StackPanel>
+            </Border>
+          </DataTemplate>
+        </ItemsControl.ItemTemplate>
+      </ItemsControl>
+    </ScrollViewer>
+    
+    <v:LoadingIcon x:Name="LoadingIcon" Grid.Row="2" HorizontalAlignment="Center" Margin="0,16" Width="24" Height="24" IsVisible="False"/>
+  </Grid>
+</UserControl>

src/Views/CommitRelationTracking.axaml.cs

@@ -0,0 +1,32 @@
+using System.Threading.Tasks;
+
+using Avalonia.Controls;
+using Avalonia.Threading;
+
+namespace SourceGit.Views
+{
+    public partial class CommitRelationTracking : UserControl
+    {
+        public CommitRelationTracking()
+        {
+            InitializeComponent();
+        }
+
+        public CommitRelationTracking(ViewModels.CommitDetail detail)
+        {
+            InitializeComponent();
+
+            LoadingIcon.IsVisible = true;
+
+            Task.Run(() =>
+            {
+                var containsIn = detail.GetRefsContainsThisCommit();
+                Dispatcher.UIThread.Invoke(() =>
+                {
+                    Container.ItemsSource = containsIn;
+                    LoadingIcon.IsVisible = false;
+                });
+            });
+        }
+    }
+}

src/Views/Histories.axaml

@@ -67,15 +67,15 @@
                                              BehindBrush="{DynamicResource Brush.FG1}"
                                              VerticalAlignment="Center"/>
 
-                    <v:CommitRefsPresenter IsVisible="{Binding HasDecorators}"
-                                           IconBackground="{DynamicResource Brush.DecoratorIconBG}"
+                    <v:CommitRefsPresenter IconBackground="{DynamicResource Brush.DecoratorIconBG}"
                                            IconForeground="{DynamicResource Brush.DecoratorIcon}"
                                            BranchNameBackground="{DynamicResource Brush.DecoratorBranch}"
                                            TagNameBackground="{DynamicResource Brush.DecoratorTag}"
                                            LabelForeground="{DynamicResource Brush.DecoratorFG}"
                                            FontFamily="{DynamicResource Fonts.Monospace}"
                                            FontSize="10"
-                                           VerticalAlignment="Center"/>
+                                           VerticalAlignment="Center"
+                                           Refs="{Binding Decorators}"/>
 
                     <v:CommitSubjectPresenter Classes="primary"
                                               Subject="{Binding Subject}"